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      PAGE  2
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      PAGE  3
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      PAGE  5
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      PAGE  6
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      PAGE  7
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      PAGE  8
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      PAGE  9
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      PAGE  10
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      PAGE  11
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      PAGE  12
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      PAGE  13
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      PAGE  14
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      PAGE  15
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      PAGE  16
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SIGNATURE   MICHAEL SAKALA                               
TITLE       ASSISTANT TREASURER 
 

EX-27

 

<ARTICLE> 6

   <NUMBER> 01
   <NAME> BARR ROSENBERG SERIES TRUST, INT'L SM CAP SER, INST. SH
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
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EX-27

WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

 

<ARTICLE> 6

   <NUMBER> 02
   <NAME> BARR ROSENBERG SERIES TRUST, INT'L SM CAP SER, SEL SH
<MULTIPLIER> 1,000
       
                             
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<ACCUMULATED-NET-GAINS>                            (4)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                            40
<NET-ASSETS>                                     13044
<DIVIDEND-INCOME>                                   56
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       2
<EXPENSES-NET>                                      54
<NET-INVESTMENT-INCOME>                              4
<REALIZED-GAINS-CURRENT>                             4
<APPREC-INCREASE-CURRENT>                           40
<NET-CHANGE-FROM-OPS>                               48
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                             18
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                              18
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                               36
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    269
<AVERAGE-NET-ASSETS>                                85
<PER-SHARE-NAV-BEGIN>                            10.04
<PER-SHARE-NII>                                    .02
<PER-SHARE-GAIN-APPREC>                            .07
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.13
<EXPENSE-RATIO>                                   .015
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

 

EX-27

WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

 

<ARTICLE> 6

   <NUMBER> 01
   <NAME> BARR ROSENBERG SERIES TRUST, JAPAN SERIES, INST. SH
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          MAR-31-1997
<PERIOD-END>                               MAR-31-1997
<INVESTMENTS-AT-COST>                             1250
<INVESTMENTS-AT-VALUE>                            1022
<RECEIVABLES>                                       58
<ASSETS-OTHER>                                      10
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                    1090
<PAYABLE-FOR-SECURITIES>                            27
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                           41
<TOTAL-LIABILITIES>                                 68
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                          1697
<SHARES-COMMON-STOCK>                              163
<SHARES-COMMON-PRIOR>                              157
<ACCUMULATED-NII-CURRENT>                            2
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                          (449)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         (228)
<NET-ASSETS>                                      1022
<DIVIDEND-INCOME>                                    9
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                      17
<NET-INVESTMENT-INCOME>                            (8)
<REALIZED-GAINS-CURRENT>                          (89)
<APPREC-INCREASE-CURRENT>                        (304)
<NET-CHANGE-FROM-OPS>                            (401)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            6
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                4
<NUMBER-OF-SHARES-SOLD>                              4
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  1
<NET-CHANGE-IN-ASSETS>                               5
<ACCUMULATED-NII-PRIOR>                              7
<ACCUMULATED-GAINS-PRIOR>                        (363)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                               12
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    169
<AVERAGE-NET-ASSETS>                               159
<PER-SHARE-NAV-BEGIN>                             8.77
<PER-SHARE-NII>                                  (.05)
<PER-SHARE-GAIN-APPREC>                         (2.45)
<PER-SHARE-DIVIDEND>                               .07
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               6.20
<EXPENSE-RATIO>                                   .014
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

 

EX-27

WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

 

<ARTICLE> 6

   <NUMBER> 02
   <NAME> BARR ROSENBERG SERIES TRUST, JAPAN SERIES, SEL SH
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   5-MOS
<FISCAL-YEAR-END>                          MAR-31-1997
<PERIOD-END>                               MAR-31-1997
<INVESTMENTS-AT-COST>                             1250
<INVESTMENTS-AT-VALUE>                            1022
<RECEIVABLES>                                       58
<ASSETS-OTHER>                                      10
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                    1090
<PAYABLE-FOR-SECURITIES>                            27
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                           41
<TOTAL-LIABILITIES>                                 68
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                          1697
<SHARES-COMMON-STOCK>                                2
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                            2
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                          (449)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         (228)
<NET-ASSETS>                                      1022
<DIVIDEND-INCOME>                                    9
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                      17
<NET-INVESTMENT-INCOME>                            (8)
<REALIZED-GAINS-CURRENT>                          (89)
<APPREC-INCREASE-CURRENT>                        (304)
<NET-CHANGE-FROM-OPS>                            (401)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              2
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                               2
<ACCUMULATED-NII-PRIOR>                              7
<ACCUMULATED-GAINS-PRIOR>                        (363)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                               12
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    169
<AVERAGE-NET-ASSETS>                                 9
<PER-SHARE-NAV-BEGIN>                             8.08
<PER-SHARE-NII>                                  (.01)
<PER-SHARE-GAIN-APPREC>                         (1.80)
<PER-SHARE-DIVIDEND>                               .07
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               6.20
<EXPENSE-RATIO>                                   .015
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

 

EX-27

 

<ARTICLE> 6

   <NUMBER> 01
   <NAME> BARR ROSENBERG SERIES TRUST, U.S. SM CAP SERIES, INST. SH
<MULTIPLIER> 1000
       
                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          MAR-31-1997
<PERIOD-END>                               MAR-31-1997
<INVESTMENTS-AT-COST>                            78655
<INVESTMENTS-AT-VALUE>                           84194
<RECEIVABLES>                                     8034
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                   92228
<PAYABLE-FOR-SECURITIES>                          3945
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         3584
<TOTAL-LIABILITIES>                               7529
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         71759
<SHARES-COMMON-STOCK>                            11510
<SHARES-COMMON-PRIOR>                             7902
<ACCUMULATED-NII-CURRENT>                          288
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                           7114
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                          5538
<NET-ASSETS>                                     84699
<DIVIDEND-INCOME>                                  821
<INTEREST-INCOME>                                   31
<OTHER-INCOME>                                      38
<EXPENSES-NET>                                     670
<NET-INVESTMENT-INCOME>                            220
<REALIZED-GAINS-CURRENT>                         17712
<APPREC-INCREASE-CURRENT>                       (7399)
<NET-CHANGE-FROM-OPS>                            10533
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                          303
<DISTRIBUTIONS-OF-GAINS>                         11414
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                           4959
<NUMBER-OF-SHARES-REDEEMED>                       3032
<SHARES-REINVESTED>                               1681
<NET-CHANGE-IN-ASSETS>                            3608
<ACCUMULATED-NII-PRIOR>                            300
<ACCUMULATED-GAINS-PRIOR>                         3966
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              544
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    978
<AVERAGE-NET-ASSETS>                             62500
<PER-SHARE-NAV-BEGIN>                             7.60
<PER-SHARE-NII>                                    .04
<PER-SHARE-GAIN-APPREC>                           1.39
<PER-SHARE-DIVIDEND>                               .05
<PER-SHARE-DISTRIBUTIONS>                         1.85
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               7.13
<EXPENSE-RATIO>                                   .011
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

 

EX-27

 

<ARTICLE> 6

   <NUMBER> 02
   <NAME> BARR ROSENBERG SERIES TRUST, U.S. SM CAP SERIES, SEL SH
<MULTIPLIER> 1000
       
                             
<PERIOD-TYPE>                   5-MOS
<FISCAL-YEAR-END>                          MAR-31-1997
<PERIOD-END>                               MAR-31-1997
<INVESTMENTS-AT-COST>                            78655
<INVESTMENTS-AT-VALUE>                           84194
<RECEIVABLES>                                     8034
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                   92228
<PAYABLE-FOR-SECURITIES>                          3945
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         3584
<TOTAL-LIABILITIES>                               7529
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         71759
<SHARES-COMMON-STOCK>                              333
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                          288
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                           7114
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                          5538
<NET-ASSETS>                                     84699
<DIVIDEND-INCOME>                                  821
<INTEREST-INCOME>                                   31
<OTHER-INCOME>                                      38
<EXPENSES-NET>                                     670
<NET-INVESTMENT-INCOME>                            220
<REALIZED-GAINS-CURRENT>                         17712
<APPREC-INCREASE-CURRENT>                       (7399)
<NET-CHANGE-FROM-OPS>                            10533
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            1
<DISTRIBUTIONS-OF-GAINS>                            28
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            331
<NUMBER-OF-SHARES-REDEEMED>                          2
<SHARES-REINVESTED>                                  4
<NET-CHANGE-IN-ASSETS>                             333
<ACCUMULATED-NII-PRIOR>                            300
<ACCUMULATED-GAINS-PRIOR>                         3966
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              544
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    978
<AVERAGE-NET-ASSETS>                               617
<PER-SHARE-NAV-BEGIN>                             8.49
<PER-SHARE-NII>                                    .07
<PER-SHARE-GAIN-APPREC>                            .47
<PER-SHARE-DIVIDEND>                               .05
<PER-SHARE-DISTRIBUTIONS>                         1.85
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               7.13
<EXPENSE-RATIO>                                   .012
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

 

EX-27

 

<ARTICLE> 6

   <NUMBER> 03
   <NAME> BARR ROSENBERG SERIES TRUST, U.S. SM CAP SERIES, ADV SH
<MULTIPLIER> 1000
       
                             
<PERIOD-TYPE>                   2-MOS
<FISCAL-YEAR-END>                          MAR-31-1997
<PERIOD-END>                               MAR-31-1997
<INVESTMENTS-AT-COST>                            78655
<INVESTMENTS-AT-VALUE>                           84194
<RECEIVABLES>                                     8034
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                   92228
<PAYABLE-FOR-SECURITIES>                          3945
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         3584
<TOTAL-LIABILITIES>                               7529
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         71759
<SHARES-COMMON-STOCK>                               29
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                          288
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                           7114
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                          5538
<NET-ASSETS>                                     84699
<DIVIDEND-INCOME>                                  821
<INTEREST-INCOME>                                   31
<OTHER-INCOME>                                      38
<EXPENSES-NET>                                     670
<NET-INVESTMENT-INCOME>                            220
<REALIZED-GAINS-CURRENT>                         17712
<APPREC-INCREASE-CURRENT>                       (7399)
<NET-CHANGE-FROM-OPS>                            10533
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                             29
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                              29
<ACCUMULATED-NII-PRIOR>                            300
<ACCUMULATED-GAINS-PRIOR>                         3966
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              544
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    978
<AVERAGE-NET-ASSETS>                               200
<PER-SHARE-NAV-BEGIN>                             7.38
<PER-SHARE-NII>                                    .02
<PER-SHARE-GAIN-APPREC>                          (.26)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               7.14
<EXPENSE-RATIO>                                   .012
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0